feat: Setup development environment

The environment includes java, maven, IntelliJ and a postgres server.

.envrc

@@ -0,0 +1,3 @@
+source_url "https://raw.githubusercontent.com/cachix/devenv/82c0147677e510b247d8b9165c54f73d32dfd899/direnvrc" "sha256-7u4iDd1nZpxL4tCzmPG0dQgC5V+/44Ba+tHkPob1v2k="
+
+use devenv

.gitignore

@@ -29,3 +29,12 @@ replay_pid*
 result
 result-*
 
+# Devenv
+.devenv*
+devenv.local.nix
+
+# direnv
+.direnv
+
+# pre-commit
+.pre-commit-config.yaml

devenv.lock

@@ -0,0 +1,116 @@
+{
+  "nodes": {
+    "devenv": {
+      "locked": {
+        "dir": "src/modules",
+        "lastModified": 1730890834,
+        "owner": "cachix",
+        "repo": "devenv",
+        "rev": "c5353d1a0483b8f0dc15933de91c6b1b9a892831",
+        "type": "github"
+      },
+      "original": {
+        "dir": "src/modules",
+        "owner": "cachix",
+        "repo": "devenv",
+        "type": "github"
+      }
+    },
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1696426674,
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "gitignore": {
+      "inputs": {
+        "nixpkgs": [
+          "pre-commit-hooks",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1709087332,
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "rev": "637db329424fd7e46cf4185293b9cc8c88c95394",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1730958623,
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "85f7e662eda4fa3a995556527c87b2524b691933",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-stable": {
+      "locked": {
+        "lastModified": 1730883749,
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "dba414932936fde69f0606b4f1d87c5bc0003ede",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-24.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "pre-commit-hooks": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "gitignore": "gitignore",
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "nixpkgs-stable": "nixpkgs-stable"
+      },
+      "locked": {
+        "lastModified": 1730814269,
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "rev": "d70155fdc00df4628446352fc58adc640cd705c2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "devenv": "devenv",
+        "nixpkgs": "nixpkgs",
+        "pre-commit-hooks": "pre-commit-hooks"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

devenv.nix

@@ -0,0 +1,70 @@
+{
+  pkgs,
+  lib,
+  config,
+  inputs,
+  ...
+}:
+
+{
+  imports = [ ];
+
+  # https://devenv.sh/packages/
+  packages = [
+    pkgs.git
+    pkgs.jetbrains.idea-community-bin
+  ];
+
+  languages.java.enable = true;
+  languages.java.maven.enable = true;
+  languages.nix.enable = true;
+
+  # https://devenv.sh/processes/
+  # processes.cargo-watch.exec = "cargo-watch";
+
+  processes.flexinale-monolith.exec = ''
+    java -Dspring.datasource.url=jdbc:postgresql://localhost:5432/monolith -jar flex-training-flexinale/flexinale-monolith/target/flexinale-monolith-2024.3.0-spring-boot-fat-jar.jar
+  '';
+
+  # https://devenv.sh/services/
+  services.postgres = {
+    enable = true;
+    listen_addresses = "127.0.0.1";
+    initialScript =
+      let
+        createDB = n: ''
+          CREATE DATABASE "${n}";
+          GRANT ALL PRIVILEGES ON DATABASE "${n}" TO "flexinale";
+        '';
+      in
+      ''
+        CREATE USER flexinale WITH SUPERUSER PASSWORD 'flexinale';
+      ''
+      + (lib.strings.concatMapStringsSep "\n" createDB [
+        "monolith"
+        "modulith-1"
+        "modulith-2"
+        "distributed-backoffice"
+        "distributed-besucherportal"
+        "distributed-ticketing"
+        "distributed-test"
+      ]);
+  };
+
+  # https://devenv.sh/scripts/
+  scripts.monolith-load.exec = ''
+    cd ${config.env.DEVENV_ROOT}/flex-training-flexinale
+    mvn test -Dtest=testdata.TestDataLoader -pl flexinale-monolith -am
+  '';
+
+  # https://devenv.sh/tests/
+  enterTest = ''
+    echo "Running tests"
+    git --version | grep --color=auto "${pkgs.git.version}"
+  '';
+
+  # https://devenv.sh/pre-commit-hooks/
+  pre-commit.hooks.shellcheck.enable = true;
+
+  # See full reference at https://devenv.sh/reference/options/
+}

devenv.yaml

@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=https://devenv.sh/devenv.schema.json
+inputs:
+  nixpkgs:
+    url: github:nixos/nixpkgs/nixpkgs-unstable
+    #url: github:cachix/devenv-nixpkgs/rolling
+
+# If you're using non-OSS software, you can set allowUnfree to true.
+# allowUnfree: true
+
+# If you're willing to use a package that's vulnerable
+# permittedInsecurePackages:
+#  - "openssl-1.1.1w"
+
+# If you have more than one devenv you can merge them
+#imports:
+# - ./backend